Biology:SRG1 RNA

From HandWiki
SRG1
Srg1.png
Conserved secondary structure of SRG1 RNA
Identifiers
SymbolSRG1
RfamRF01765
Other data
RNA typeGene; Cis-reg;
Domain(s)Saccharomyces
PDB structuresPDBe

SRG1 RNA (SER3 regulatory gene 1) is a non-coding RNA which represses the expression of SER3 (YER081W).[1][2][3] SER3 is a gene which codes for a phosphoglycerate dehydrogenase involved in the biosynthesis of serine.[4] SRG1 represses SER3 expression via transcription interference, and in that respect is the first intergenic transcript of its kind.[1]

SRG1 was identified when chromatin immunoprecipitation (ChIP) assays showed that in Saccharomyces cerevisiae, even when SER3 was being repressed, TATA-binding protein and RNA Polymerase II were still bound to the SER3 DNA in such a way that should have caused active transcription.[1] Further analysis found a second TATA box 558 bp upstream of SER3. A bioinformatic scan identified this same TATA box element in related Saccharomyces.[5] SRG1 has been found to be cis-acting, it had no repressive effect when in trans.[1]

SRG1 RNA is unrelated to Senescence Related Gene 1 (SRG1), a protein-coding gene found in Arabidopsis thaliana,[6] and is also distinct from Stress Response Gene 1 (SRG1) found in Medicago sativa.[7][8]

References

  1. 1.0 1.1 1.2 1.3 "Intergenic transcription is required to repress the Saccharomyces cerevisiae SER3 gene". Nature 429 (6991): 571–574. June 2004. doi:10.1038/nature02538. PMID 15175754. Bibcode2004Natur.429..571M. 
  2. "Entrez Gene SRG1". 2010-07-03. https://www.ncbi.nlm.nih.gov/sites/entrez?db=gene&cmd=Retrieve&dopt=full_report&list_uids=9164885. 
  3. "Yeast Genome SRG1". https://www.yeastgenome.org/locus/S000029010. 
  4. "Ser3p (Yer081wp) and Ser33p (Yil074cp) are phosphoglycerate dehydrogenases in Saccharomyces cerevisiae". The Journal of Biological Chemistry 278 (12): 10264–10272. March 2003. doi:10.1074/jbc.M211692200. PMID 12525494. 
  5. "Finding functional features in Saccharomyces genomes by phylogenetic footprinting". Science 301 (5629): 71–76. July 2003. doi:10.1126/science.1084337. PMID 12775844. Bibcode2003Sci...301...71C. 
  6. "Uniprot Knowledgebase - Protein SRG1". https://www.uniprot.org/uniprot/Q39224. 
  7. "Isolation of pathogen/stress-inducible cDNAs from alfalfa by mRNA differential display". Plant Molecular Biology 33 (4): 737–743. March 1997. doi:10.1023/A:1005728420374. PMID 9132065. http://www.kluweronline.com/art.pdf?issn=0167-4412&volume=33&page=737. 
  8. "GenBank Accs:U42752.1". 27 May 1997. https://www.ncbi.nlm.nih.gov/nuccore/1136332. 

Further reading

External links